Machine for washing beans, &amp;c.



T. WILSON.

MACHINE FOR WASHING BEANS, 6w.

APPLTMTIQR FILED JULY 21,1913

1,109,728. Patented Sept. 8, 1914 L WITNESSES: INVENTOR- 72441 272.4 V BY AZ/M/ ATTORNEY THOMA S WILSON, OF MARLETTE, MICHIGAN.

' -MACHINEF RWASH NG"imalta aa' Specification of letters Patent Patented Sept. 8, 1914.

Application filed Ju1y 21, 1913. Serial No. 780,337. Y

T 0 all whom it may concern:

Be it known that I, TnoMAs WILSON, a citizen of the United States, residing at Marlette, in the county of Sanilac and State of Michigan, have invented certain newand useful Improveinents in Machines for \Vashing Beans,'&c.; and I do hereby declarethe following to be a full, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use the same.

This invention is a machine for washing and draining beans, peas and similar articles and the improvement relates more par ticularly to the combination of devices whereby the beans are first washed by being agitated in a body of water, and then washed by a shower or spray, the material being then conveyed along a draining screen and subjected to the drying'action of a current of air produced by an exhaust .fan. The cleaned material is then delivered through a discharge spout. Theobjects of my invention a're to thoroughly wash, spray, drain and partiallydry the material at one passage through the machine. L 7

With this and certain other objects in view which will appear later in the specifications, my improvement consists in the devices described and claimed and the equivalents thereof.

In the drawing, Figure 1 is a. part vertical section taken lengthwise through the machine; Fig, 2 is a cross section of the trough on line 22 of Fig. 1; Fig. 3 is a side perspective view of the assembled machine:

As is clearly shown in the drawings, the device consists in a trough 1, near the bottom of which is located a removable screen 2 of sufi'iciently fine mesh to permit the material to be conveyed along the surface of the screen while permitting the water and dirt to pass through. A screw conveyer 3 is mounted in the trough so that its lower periphery is sufliciently close to the screen 2 to permit the conveyer to move the material along the screen The conveyer is driven by a suitablepulley 4. Along the upper edge of one side of theconveyer trough is aperforated spray pipe 5' arranged todeliver. a shower of water into the-trough at one side of the conveyer 3.

The trough is arranged with its delivery end higher than the receiving end, the lower end being filled with water, as shown in Fig. 1.

The material to be washed is delivered into the water at the lower end of the machine, where it is thoroughly agitated and gradually forced toward the delivery end of the trough by the rotating screwcon veyer. The material tends to lift upout of the water along the upwardly moving pe-,

riphery of the screw conveyer, .on the side of the trough at which spray pipe 5 is located, and it is thus thoroughlywashed by the shower of water from pipe 5'during its upward pas age along the screen 2.

The screw conveyer traverses the material upward along the screen and out of the water, where it drains and then passes over the screen at the upper end of an air suction pipe 7 from which the air is drawn byan exhauster 8. The suction of the air through the screen draws off most of the remaining surface moisture from the material, which then passes on and is discharged through a suitable outlet 9 at the upper end of screen 2.

By the means above described I- have produced a washing machine of simple construction, having no parts that are liable to get,out of order, and capable of rapidly washing, spraying, draining, and air-drying large quantities of material in a comparatively short time.

Having described my invention, what I claim an desire to secure by Letters'Patent is as follows: i

In a machine for washing beans, the combination with an inclined delivery trough having 'a screw conveyer mounted therein, of

a removable screen arranged in said delivery trough adjacent thelower periphery of said screw conveyer adapted to span said delivery trough toform an auxiliary removable bottom therefor, a spray pipe adapted to discharge water into said trough andpartly In testimony whereof, I aflix my signasubmerge said screen, a suction pipe comture in presence of two witnesses. municating with said trough beneath the upper submerged part of the removable screen, k I THOMAS WILSON and a discharge pipe communicating with \Vitnesses: said trough adjacent the upper end of said ROY BRICP'ER,

removable screen. GEO. B. Wmnoox. 

